Chain-lock in loading or unloading apparatus



(No Model.)

H. C. DOMEYER. CHAIN LOCK IN LoADING 0R UNLOADING APPARATUS.

No. 593,928. Patented Nov. 16, 1897.

"UNITED .STATES PATENTY OFFICE.

HENRY C. DOMEYER, OF SAUVIES ISLAND, OREGON.

CHAIN-LOCK |'N LoADlNcoR UNLoADl-NG APPARATUS.

SPECIFICATION forming part' of Letters Patent No. 593,928-, dated November 16, 1897. Appnmion mea J'amlay 15, 1897. smal No. 619,381. (No model.)

.To aZZ whom it may concern:

Be it known that I, HENRY G. DOMEYER, a citizen ofthe United States, residing at Sauvies Island, in the State of Oregon, have invented a new and useful Improvement in Chain-Locks in Loading or Unloading Apparatus, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

The object of my present invention is to improve upon the lock for holding the lower chain or cable ends in va loading or unloading apparatus. p

The construction of my improved lock is illustrated in the accompanying drawings, in whichy Figure l is an inverted plan with the under plate removed, so as to disclose the arrangement of the locking mechanism. Fig. 2 is a side elevation of one of the bolts constituting a part of the locking mechanism. Fig. 3 is a vertical section on the line a; in-

tersecting Fig. 1, but including the plate omitted in said Fig. l. Fig. 4 is an inverted plan of the under plate c, (not shown in Fig. 1,) and Fig. 5 illustrates a coupling device for securing the loose ends of the chains held by my improved lock.

The letters and numbers designate the parts referred to.

The looking mechanism is inclosed within a case constructed of three plates a b c, the first of which is plain and solid and serves as a cover when my lock is set in position to keep obstructions out of the locking mechanism. The plates b c are respectively provided with slots CZ, e, CZ', e', and f and perforationsgV h t' 7' le, extending through the plates.

In the slots d e CZ c slide the projecting portions of the bolts Z m and in the notches Zm' slide the bridges n n. l The bolts are kept forward by the extending arms of the coilsprings o, held on a post p. The trigger q has two arms q and q2, which are inserted in the horizontal slots r, with which thebolts are respectively provided. To the eye s on the trigger is attached a cord t, extending through the eye a, so that the trigger'may be operated and the bolts drawn back by pull- 5o ing on such oord.

' fu' o2 o3 U4 are four threaded posts extending through the plates b cand provided with nuts Afor bolting said plates together.

My lock is designed to hold four chain ends. One of these is held by its end link on the post o3, and the end links of the other three chains are attached to anchors l 2 3, provided with semiannular notches w, by which they are braced against the posts o o2 o4, the latter serving as fixed abutments for said anchors, and the anchor 3 having a toe 3, by which it is held by the bolt Z, and the anchors l and 2 being constructed and interlocking as shown in Fig. l, the anchor l being held by its toe la by the bolt m, thus drawing back vthe bolts Z m will release the anchors l 2 3 and the chain ends attached thereto, the lock coming away with the chain attached to the post o3. The upper or opposite ends of the chains may be coupled to `a device illustrated in Fig. 5, and the chain ends to be coupled may be tightened by means of a lever, also shown and more fully described in another application for Letters Patent filed by me of even date herewith.

1. In aloading and unloading apparatus, the combination of a slotted plate, a bolt slidable therein, fixed abutments on the plate, anchors engaging said abutments loosely or so as to be movable therefrom and held in contact y with said abutments by said bolt, chains secured to said anchors, a trigger for moving said bolt, and means for-holding the movable parts to the plate substantially as described.

2. In a loading and unloading apparatus, the combination of a slotted plate, a bolt slidable therein, ixed abutments on the plate, anchors engaging said abutments loosely or so as to be movable therefrom and held in contact with said abutments by said bolt, chains secured to said anchors, a spring for retaining said bolt in its operative position, a trigger for moving said bolt, and means for holding the movable parts to the plate substantially as described.

3. In a loading and unloading apparatus, the combination of a slotted plate,l bolts slidable in the slots of said plate, fixed abutments on the plate, anchors engaging said abutments and held by said bolts, chains se- IOO 5. In a loading and unloading apparatus a chain-lock comprising the slotted and perforated plates b c the bolts lm the trigger q and its operating connections, the spring o the posts o U2 o3 o4 the anchors l 2 3 and the chains, the parts being combined and operating substantially as set forth.

In witness whereof I have hereunto set my signature in the presence of two Witnesses.

HENRY C. DOMEYER.

Witnesses:

GEO. W. HAZEN, T. J. GEIsLER. 

